Supporting-shoe for vehicles with air-tires.



No. 718,244.- PATENTED JAN. 13, 1903.

-L. GOMBRUN.

SUPPORTING'SHOB FOR VEHICLES WITH AIR TIRES. APrLmA non FILED we. 25,- 1902.

NO MODEL.

UNITED STATES I PATENT OFFICE.

LEON GOMBRUN, OF CLIOHY-ON-THE-SEINE, FRANCE.

SUPPORTING-SHOE FOR VEHICLES WlTl-l AIR-TIRES.

{SPECIFICATION forming part of Letters Patent No. 718,244, dated January 13, 1903.

Application filed August 25, 1902. Serial No. 120,993. (No model.)

To a whom it may concern:

Be it known that I, LEON OOMBRUN, a citizen of the Republic of France, residing at Olichy-on-the-Seine, France, have invented a Supporting-Shoe for Vehicles with Air-Tires, of which the following is a specification.

The present invention relates to a supporting-shoe for vehicles having pneumatic airtires, by means of which the wheels of said vehicles may be lifted up and supported off the ground.

The supporting-shoe can be attached to the folly of the wheel to be lifted up, either in front or in the rear of the point of its contact with the floor, so that it will only be necessary to move the vehicle forward or backward to cause the lifting up of the wheel by shifting the shoe under the hub and to maintain the wheel in the lifted-up position as long as the device remains directly under the axle of the wheel.

In the annexed drawing the improved supporting-shoe is illustrated by way of an example.

Figure 1 is a side View of a wheel, the device being clatnped to the felly in front of a line drawn vertically from the hub to the floor. Fig. 2 is a similar view, the device being located directly under the axle. Fig. 3 is a section on line X X in Fig. 2.

a is a pneumatic tire secured to the rim 1). The shoe consists of two angle-irons 0, con

nected at their lower part by a plate cl or a number of cross-bars. At each side and on tside of the angle-irons are provided ihe arms 6 e and ff, the arms 6 e being rigidly secured to one of the angle-irons by rivets or bolts, while the arms f are pivoted to the opposite angle-iron, as at g. These arms have a profile corresponding to the edge of the rim, so that when turned upward they engage partly the side of the rim.

The upper ends of thearms eeare connected by a bar 2, having an eye in the middle, and

asimilar bar f connects the arms ff, having in the middle a fork or an eye cut open at the top; A screw-bolt 71. passes loosely through the eye of bar 6', and the threaded end being i provided with a thumb-nut is adapted to rest in the fork or open eye of bar f.

The angle-irons are so curved that when the device is clamped to the folly there is only a very small space viz one millimeterbetween the tire and the end edges 2' of the device, but yet large enough so that the tire does not come in contact therewith, whereas this space is preferably made larger in the middle of the device-viz., from five to fifteen ,by pulling the vehicle forward, (respectively backward). The Wheel is thus lifted up from the ground and kept in this position by the shoe. The lifting up will be effected without 5 In this any shock and automatically, and in supporting the wheel there is no other gripping-point on the rim of the wheel.

The pumping up of the tire is effected very easily, since the tire does not rest at any point on a support adapted to flatten or to deform it.

I claim' A supporting-shoe for vehicles with pneumatic tires com posed of two angle-irons c and a connecting-plate cl bearing on the ground and having lateral arms e e, ff, one pair of which is rigidly secured to one of the angleirons the other pair being pivoted to the op- .posite angle-iron, each arm being provided with a profile to fit the sides or edges of the rim and being provided with means to clamp the arms against the rim substantially as described and for the purpose set forth.

In testimony whereof I affix my signature.

, LEON OOMBRUN. In presence of-- EMILE GRIMONT, RICHARD BAYER. 

